EP 2409296 B1 20160921 - VALVE FOR WIND INSTRUMENT
Title (en)
VALVE FOR WIND INSTRUMENT
Title (de)
VENTIL FÜR WINDINSTRUMENTE
Title (fr)
ROBINET POUR INSTRUMENT À VENT
Publication
Application
Priority
- US 2010000488 W 20100219
- US 21037809 P 20090318
- US 45598609 A 20090610
Abstract (en)
[origin: US2010236379A1] The present invention provides a valve assembly designed to regulate air flow through a musical instrument and is designed to avoid bumps typically associated with valve construction that result in distortion and other harmful effects on vibrating columns of air that pass there-through. The valve assembly comprises: a cylindrical-shaped valve casing having openings formed therein that define at least one ingress and at least one egress through which vibrating columns of air pass; and a valve piston received within the valve casing and linearly displaceable therein, the valve piston comprising at least one passageway having a cross-section that is open and u-shaped, whereby other passageways formed in the valve piston are bump-free. The present invention also provides a valve assembly comprising: a cylindrical-shaped valve casing having openings formed therein that define at least one ingress and at least one egress through which vibrating columns of air pass; and a rotary valve received within the valve casing and rotatably displaceable therein. The rotary valve comprises a pair of passageways formed asymmetrically in the body of the rotary valve and at least one of the pair of passageways having a substantially circular cross-section. The rotary valve being further characterized with a land between opening of one of the pair of passageways and the absence of a land for the other of the pair of passageways so as to minimize distortion.
IPC 8 full level
G10D 9/04 (2006.01)
CPC (source: EP US)
G10D 9/04 (2013.01 - EP US); Y10T 29/49412 (2015.01 - EP US); Y10T 29/49723 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
US 2010236379 A1 20100923; US 8227677 B2 20120724; CN 102369566 A 20120307; CN 102369566 B 20170922; EP 2409296 A2 20120125; EP 2409296 A4 20130116; EP 2409296 B1 20160921; ES 2607938 T3 20170404; JP 2012521018 A 20120910; JP 5960592 B2 20160802; WO 2010107465 A2 20100923; WO 2010107465 A3 20101202; WO 2010107465 A4 20110113
DOCDB simple family (application)
US 45598609 A 20090610; CN 201080012417 A 20100219; EP 10753793 A 20100219; ES 10753793 T 20100219; JP 2012500780 A 20100219; US 2010000488 W 20100219